I finished the assignment and got 100% on it.
The Answer is:
A) His unwillingness to accept that his own beliefs may be incorrect.
"The peripheral nervous system—which is a network of nerves extending from your brain and spinal cord to all parts of your body—carries signals back and forth." is correct.
The last one is the answer that's at least wha ti think
Cant help ya there boi this is ur opinion on things